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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001121
EISBN: 978-1-62708-214-3
... Abstract An AISI D2 tool steel insert from a forming die used in the manufacture of automotive components failed prematurely during production. Results of various analyses and simulation tests indicated fatigue failure resulting from improper heat treatment. The fatigue fracture originated...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001783
EISBN: 978-1-62708-241-9
... investigation provides information on not only better materials, but also design changes intended to reduce wear and increase service life. bushing wear relative hardness aluminum bronze distortion microstructural analysis coefficient of friction AMPCO 45 (aluminum bronze) UNS 63000 D2 (high...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001043
EISBN: 978-1-62708-214-3
... had been completely through-carburized to the extent that it approached a D2 tool steel in carbide microstructure and hardness (50 to 60 HRC). This produced a very brittle, undesirable material that would fracture under only minor loading conditions. The presence of thermal fatigue indications was...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
.... Figure 10 shows an example of grinding cracks due to failure to temper the part. Two AISI D2 tool steel dies, which measured 57 × 60 × 29 mm or 51 mm thick (2 1 4 × 2 3 8 × 1 1 8 in. or 2 in. thick), were observed to be cracked after finish grinding. The cracks are...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0009222
EISBN: 978-1-62708-180-1
... secondary and developed because the structure is particularly sensitive to grinding. Fig. 6 Nonuniform, low quenching temperatures can cause bald-head fractures in carbon-tool steel dies. Fig. 7 A slitter knife of D2 tool steel exhibits characteristic grinding cracks (both parallel and...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... Figure 33 shows the microstructure of an AISI D2 tool steel powder metallurgy die that was deformed at one end after heat treatment. Light microscopy revealed that the steel was locally melted in this region, apparently due to flame impingement during austenitization. Fig. 33 Light micrograph of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001535
EISBN: 978-1-62708-232-7
... chromium varieties of D2 (1.25 wt% C, 12 wt% Cr) or D4 (2.25 wt% C, 12 wt% Cr) type cold-work tool steels ( Ref 4 ) or of tungsten carbide ( Ref 5 ), second-intermediate roll steel composition is leaner in carbon content for enhanced toughness. It has been reported ( Ref 6 ) that toughness for intermediate...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
... of the abraded surface decreases. Materials containing hard phases, such as AISI D2 tool steel, chromium white cast iron, and WC-Co, and with hardnesses in excess of 600 kg/mm 2 display a very high abrasion resistance (even mild wear); in fact, abrasive wear in these materials is mainly...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... carbides near the surface shattered. Fig. 9 Fracture in a thin medical device manufactured from type D2 tool steel. (a) View showing a fractured massive carbide and associated matrix crack. Scanning electron micrograph. Original magnification: 1187×. (b) Cross section through a cracked region in a...